Soft sealing gate valve

Abstract

The utility model discloses a soft sealing gate valve which comprises a valve body, a top cover is installed on the top of the valve body through a bolt, a lifting frame is arranged in the valve body, a gate plate is fixed to the bottom of the lifting frame, clamping frames are fixed to the two sides of the gate plate, a sealing gasket is clamped to one side of each clamping frame, and a threaded rod is arranged in the top cover. A rotating disc is fixed to the bottom end of the screw rod, a connecting groove is formed in the top of the lifting frame, the rotating disc rotates in the connecting groove, a second gear is rotationally arranged on an external thread of the screw rod, a rotating handle is rotationally arranged on one side of the top cover, a first gear is fixed to the outside of one end of a shaft of the rotating handle and meshed with the second gear, and a circular rotating groove is formed in the inner wall of the top cover; a rotating frame is fixed to the top of the second gear and rotates in the rotating groove, sealing grooves are formed in the top of the valve body and the bottom of the top cover, sealing rings are clamped in the sealing grooves, and threaded grooves are formed in the two sides of the valve body. The gate valve is relatively good in sealing performance, and meanwhile the gate plate is convenient to lift.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a soft-sealed gate valve. Background Art

[0002] The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a slight deformation to improve its processability and compensate for the deviation of the sealing surface angle during the processing. This gate is called an elastic gate. The soft-sealed gate valve is divided into two types: a rising stem soft-sealed gate valve and a dark stem soft-sealed gate valve. Usually there is a trapezoidal thread on the lifting rod. Through the nut in the middle of the gate and the guide groove on the valve body, the rotational motion is converted into a linear motion, that is, the operating torque is converted into an operating thrust. When the valve is opened, when the gate lift height is equal to 1:1 times the valve diameter, the fluid channel is completely unblocked, but this position cannot be monitored during operation. In actual use, the top of the valve stem is used as a mark, that is, the position where it cannot be opened, as its fully open position.

[0003] Chinese patent announcement number CN216742941U provides an elastic soft-sealed gate valve with reduced wear, and its technical solution is: including a soft-sealed gate valve body, and fixing mechanisms are arranged on both sides of the soft-sealed gate valve body; the fixing mechanism includes an annular support block, the annular support block is fixedly connected to the soft-sealed gate valve body, a plurality of annular grooves are opened on the inner side of the annular support block, and fixing beads are arranged inside the plurality of annular grooves, and the tops of the plurality of fixing beads are fixedly connected with connecting rods, and the plurality of connecting rods penetrate the annular support block, and the tops of the plurality of connecting rods are fixedly provided with arc-shaped connecting blocks, and the outside of the annular support block is opened with a plurality of top grooves, and the plurality of arc-shaped connecting blocks are respectively arranged inside the plurality of top grooves, and a fixing component is arranged on one side of the plurality of arc-shaped connecting blocks. The beneficial effect of an elastic soft-sealed gate valve with reduced wear is: it is convenient to install, does not require the aid of tools, saves time and effort, and is convenient to disassemble for maintenance, thereby reducing the wear at the connection of the connecting pipe.

[0004] The gate valve in the prior art has the following problems: the sealing performance is relatively poor and it is inconvenient to lift the gate plate.

[0005] Therefore, it is urgent to design a soft sealing gate valve to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and provides a soft sealing gate valve.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A soft-sealed gate valve comprises a valve body, a top cover is installed on the top of the valve body by bolts, a lifting frame is arranged inside the valve body, a gate plate is fixed at the bottom of the lifting frame, a clamping frame is fixed on both sides of the gate plate, a sealing gasket is clamped on one side of the clamping frame, a screw is arranged inside the top cover, a rotating disk is fixed on the bottom end of the screw, a connecting groove is opened on the top of the lifting frame, the rotating disk rotates in the connecting groove, a gear second is rotated on the external thread of the screw, a rotating handle is rotated on one side of the top cover, a gear first is fixed on the outside of one end of the shaft of the rotating handle, the gear first is meshed with the gear second, a circular rotating groove is opened on the inner wall of the top cover, a rotating frame is fixed on the top of the gear second, the rotating frame rotates in the rotating groove, sealing grooves are opened on the top of the valve body and the bottom of the top cover, a sealing ring is clamped on the inside of the sealing groove, and threaded grooves are opened on both sides of the valve body.

[0009] Furthermore, fixing plates are fixed on both sides of the valve body and both sides of the bottom of the top cover, and fixing holes are opened on the tops of the fixing plates.

[0010] Furthermore, a connecting pipe 1 is fixed to one side of the valve body, and a connecting pipe 2 is fixed to the other side of the valve body.

[0011] Furthermore, a connecting plate is fixed to one end of the connecting pipe 1 and the connecting pipe 2, and the connecting plate is installed on the valve body by bolts, and a connecting hole is opened on one side of the connecting plate.

[0012] Furthermore, a flange plate 1 is fixed to the other end of the connecting pipe 1, and a through hole 1 is opened on one side of the flange plate 1.

[0013] Furthermore, a flange plate 2 is fixed to the other end of the connecting pipe 2, and a through hole 2 is opened on one side of the flange plate 2.

[0014] Furthermore, a plug-in column is fixed on one side of the flange plate 1, and a plug-in hole is opened on one side of the flange plate 2, and the plug-in column is adapted to the plug-in hole.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the provision of sealing gaskets, gate plates and clamping frames, the use of gate plates in combination with sealing gaskets can effectively improve the sealing and stability of the soft-sealed gate valve. At the same time, the clamping frame is convenient for the installation and replacement of the sealing gasket, thereby improving the convenience of using the soft-sealed gate valve.

[0017] 2. Through the provided screw, gear and lifting frame, rotating the handle can drive gear one to rotate, the meshing of gear one drives gear two to rotate, the rotation thread of gear two rotates on the outside of the screw, the rotation of the screw can drive the lifting frame to rise and fall, improve the lifting frame and gate plate and sealing gasket to rise and fall, and improve the convenience of opening and closing the soft sealing valve.

[0018] 3. By providing a sealing ring and a sealing groove, the sealing ring is clamped in the top of the valve body and the inside of the sealing groove at the bottom of the top cover, which can improve the sealing performance of the top of the valve body and the bottom of the top cover.

[0019] 4. Through the setting of the connecting plate and flange, the connecting plate is used to facilitate the installation of the connecting pipe on both sides of the valve body. At the same time, the flange is used to facilitate the connection of the soft sealing gate valve with other pipelines. At the same time, the combination of the plug-in column and the plug-in hole can avoid the rotation of the flange when it is connected to other pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a soft-sealed gate valve proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of a soft-sealed gate valve proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the planar structure of a soft-sealed gate valve proposed by the utility model;

[0023] Figure 4 The utility model provides a schematic diagram of the connecting pipe structure of a soft-sealed gate valve.

[0024] In the figure: 1. valve body; 2. top cover; 3. lifting frame; 4. gate; 5. sealing gasket; 6. clamping frame; 7. screw; 8. rotating handle; 9. gear one; 10. gear two; 11. rotating groove; 12. rotating frame; 13. sealing ring; 14. sealing groove; 15. fixing plate; 16. fixing hole; 17. connecting pipe one; 18. connecting pipe two; 19. connecting plate; 20. connecting hole; 21. threaded groove; 22. flange one; 23. through hole one; 24. plug-in column; 25. flange two; 26. through hole two; 27. plug-in hole; 28. connecting groove; 29. ​​rotating plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] Please also see Figures 1 to 4 A soft-sealed gate valve comprises a valve body 1, a top cover 2 is installed on the top of the valve body 1 by bolts, fixing plates 15 are fixed on both sides of the valve body 1 and both sides of the bottom of the top cover 2, the fixing plates 15 are convenient for connecting and fixing the valve body 1 and the top cover 2, a fixing hole 16 is opened on the top of the fixing plate 15, a lifting frame 3 is arranged inside the valve body 1, a gate plate 4 is fixed at the bottom of the lifting frame 3, and a clamping frame 6 is fixed on both sides of the gate plate 4, the clamping frame 6 is convenient for installing and replacing a sealing gasket 5, and improves the convenience of using the soft-sealed gate valve, a sealing gasket 5 is clamped on one side of the clamping frame 6, and the gate plate 4 cooperates with the sealing gasket 5 to effectively improve the sealing and stability of the soft-sealed gate valve, a screw 7 is arranged inside the top cover 2, and the rotation of the screw 7 can drive the lifting frame 3 to rise and fall, improve the lifting frame 3, the gate plate 4 and the sealing gasket 5 to rise and fall, and improve the convenience of switching the soft-sealed valve, the screw A rotating disk 29 is fixed to the bottom end of the rod 7, a connecting groove 28 is provided on the top of the lifting frame 3, the rotating disk 29 rotates in the connecting groove 28, a gear 2 10 is rotated on the external thread of the screw rod 7, a rotating handle 8 is rotated on one side of the top cover 2, the rotation of the rotating handle 8 can drive the gear 1 9 to rotate, a gear 1 9 is fixed to the outside of one end of the shaft of the rotating handle 8, the gear 1 9 is meshed with the gear 2 10, a circular rotating groove 11 is provided on the inner wall of the top cover 2, a rotating frame 12 is fixed on the top of the gear 2 10, the rotating frame 12 rotates in the rotating groove 11, a sealing groove 14 is provided on the top of the valve body 1 and the bottom of the top cover 2, a sealing ring 13 is clamped inside the sealing groove 14, the sealing ring 13 is clamped inside the sealing groove 14 at the top of the valve body 1 and the bottom of the top cover 2, so as to improve the sealing performance of the top of the valve body 1 and the bottom of the top cover 2, and a threaded groove 21 is provided on both sides of the valve body 1.

[0029] Furthermore, a connecting pipe 17 is fixed to one side of the valve body 1, and a connecting pipe 2 18 is fixed to the other side of the valve body 1. A connecting plate 19 is fixed to one end of the connecting pipe 17 and the connecting pipe 2 18. The connecting plate 19 is installed on the valve body 1 by bolts. The connecting plate 19 is used to facilitate the installation of the connecting pipes on both sides of the valve body 1. A connecting hole 20 is opened on one side of the connecting plate 19. A flange 22 is fixed to the other end of the connecting pipe 17. A through hole 23 is opened on one side of the flange 12. A flange 25 is fixed to the other end of the connecting pipe 2 18. The flange is used to facilitate the connection of the soft sealing gate valve with other pipelines. A through hole 26 is opened on one side of the flange 25. A plug-in column 24 is fixed to one side of the flange 12. A socket 27 is opened on one side of the flange 25. The plug-in column 24 is adapted to the socket 27. The plug-in column 24 and the socket 27 are matched to avoid rotation when the flange is connected to other pipelines.

[0030] Working principle: When in use, the top cover 2 is installed on the valve body 1. Since the sealing ring 13 is clamped in the top of the valve body 1 and the inside of the sealing groove 14 at the bottom of the top cover 2, the sealing performance of the top of the valve body 1 and the bottom of the top cover 2 is improved. The connecting plate 19 is fixed to both sides of the valve body 1 by bolts. The connecting plate 19 is used to facilitate the installation of the connecting pipe on both sides of the valve body 1. At the same time, the flange is used to facilitate the connection of the soft sealing gate valve with other pipelines. At the same time, the plug column 24 and the socket 27 are used to cooperate to avoid the rotation of the flange when it is connected to other pipelines. When it is necessary to open and close the soft-sealed gate valve, turning the handle 8 can drive the gear 1 9 to rotate, and the engagement of the gear 1 9 drives the gear 2 10 to rotate. The rotation of the gear 2 10 threadedly rotates on the outside of the screw 7. The rotation of the screw 7 can drive the lifting frame 3 to rise and fall, thereby improving the lifting and falling of the lifting frame 3, the gate plate 4 and the sealing gasket 5, and improving the convenience of switching the soft-sealed valve. The use of the gate plate 4 in combination with the sealing gasket 5 can effectively improve the sealing and stability of the soft-sealed gate valve. The clamping frame 6 facilitates the installation and replacement of the sealing gasket 5, thereby improving the convenience of using the soft-sealed gate valve.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soft-sealed gate valve, comprising a valve body (1), characterized in that: A top cover (2) is installed on the top of the valve body (1) by means of bolts, a lifting frame (3) is arranged inside the valve body (1), a gate plate (4) is fixed at the bottom of the lifting frame (3), a clamping frame (6) is fixed on both sides of the gate plate (4), a sealing gasket (5) is clamped on one side of the clamping frame (6), a screw rod (7) is arranged inside the top cover (2), a rotating disk (29) is fixed at the bottom end of the screw rod (7), a connecting groove (28) is opened on the top of the lifting frame (3), the rotating disk (29) rotates in the connecting groove (28), and the external thread of the screw rod (7) rotates with the gear 2 (1 0), a rotating handle (8) is rotatably provided on one side of the top cover (2), a gear 1 (9) is fixed to the outside of one end of the shaft of the rotating handle (8), the gear 1 (9) is meshed with the gear 2 (10), a circular rotating groove (11) is provided on the inner wall of the top cover (2), a rotating frame (12) is fixed to the top of the gear 2 (10), the rotating frame (12) rotates in the rotating groove (11), a sealing groove (14) is provided on the top of the valve body (1) and the bottom of the top cover (2), a sealing ring (13) is clamped inside the sealing groove (14), and a threaded groove (21) is provided on both sides of the valve body (1).

2. A soft-sealed gate valve according to claim 1, characterized in that: Fixing plates (15) are fixed on both sides of the valve body (1) and both sides of the bottom of the top cover (2), and a fixing hole (16) is opened on the top of the fixing plate (15).

3. A soft-sealed gate valve according to claim 1, characterized in that: A connecting pipe 1 (17) is fixed to one side of the valve body (1), and a connecting pipe 2 (18) is fixed to the other side of the valve body (1).

4. A soft-sealed gate valve according to claim 3, characterized in that: A connecting plate (19) is fixed to one end of the connecting pipe 1 (17) and the connecting pipe 2 (18); the connecting plate (19) is mounted on the valve body (1) by means of bolts; and a connecting hole (20) is provided on one side of the connecting plate (19).

5. A soft-sealed gate valve according to claim 3, characterized in that: A flange plate (22) is fixed to the other end of the connecting pipe (17), and a through hole (23) is opened on one side of the flange plate (22).

6. A soft-sealed gate valve according to claim 5, characterized in that: A second flange (25) is fixed to the other end of the second connecting pipe (18), and a second through hole (26) is opened on one side of the second flange (25).

7. A soft-sealed gate valve according to claim 6, characterized in that: A plug-in column (24) is fixed on one side of the first flange (22), and a plug-in hole (27) is opened on one side of the second flange (25), and the plug-in column (24) is matched with the plug-in hole (27).

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